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#ifndef SCRIBBLEAREA_H
#define SCRIBBLEAREA_H

#include <QColor>
#include <QImage>
#include <QPoint>
#include <QWidget>

class ScribbleArea : public QWidget
{
	Q_OBJECT

	public:
		ScribbleArea(QWidget *parent = 0);

		bool openImage(const QString &fileName);
		bool saveImage(const QString &fileName, const char *fileFormat);
		void setPenColor(const QColor &newColor);
		void setPenWidth(int newWidth);
		void setVisibility(double newVisibility);
		void setEraserMode(int newMode);

		bool isModified() const { return modified; }
		QColor penColor() const { return myPenColor; }
		int penWidth() const { return myPenWidth; }
		double shadowVisibility;
		int mode;

	public slots:
		void clearImage();
		void print();

	protected:
		void mousePressEvent(QMouseEvent *event);
		void mouseMoveEvent(QMouseEvent *event);
		void mouseReleaseEvent(QMouseEvent *event);
		void paintEvent(QPaintEvent *event);
		void resizeEvent(QResizeEvent *event);

	private:
		void drawLineTo(const QPoint &endPoint);
		void resizeImage(QImage *image, const QSize &newSize);
		void updateShadow();

		bool modified;
		bool scribbling;
		int myPenWidth;

		QImage shadow;
		QColor myPenColor;
		QImage image;
		QPoint lastPoint;
		QPoint lastCursor;
};

#endif
